that crack is way too close to the clicker. looks like the crack started on the inside @ the fillet radius. looks like the factory did not clean up the casting seem and created what is known in the metalurgical world as a stress raiser. if it were mine, i would not feel comfortable with repairing that crack. it's not worth risking a new break when jumping and you really need the suspension to do its job. find a good used one, rebuild/ revalve if necessary install it and adjust as needed. then go ride!!! the shock that zettnorcal offered you sounds like a good deal. i'd go for it. install and ride it once, it might be set up ok when you get it. do not try to weld that!!!
